October 2021 1 16 Report
Расставь коэффициенты в уравнениях химических реакций. Определи тип химической реакции.
Fe2O3 + C → Fe + CO2
Fe2O3 + HCl → FeCl3 + H2O
H2CO3 → H2O + CO2
Mg + N2 → Mg3N2
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